CN2529252Y

CN2529252Y - Human fat balance

Info

Publication number: CN2529252Y
Application number: CN 02206667
Authority: CN
Inventors: 陈智裕
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-02-28
Filing date: 2002-02-28
Publication date: 2003-01-01
Anticipated expiration: 2012-02-28

Abstract

The utility model relates to a human fat balance capable of measuring out the fat valve of human body without the influences of such factors as dry-wet degree of body surface, roughness and contact area except the resistance valve of the human body. Moreover, the human fat balance is capable of storing the personal data of the user and favoring automatic search about the personal data according to the acquired weight of the user, without repeated input, so that the human fat balance disclosed in the utility model has the advantages of high accuracy and convenient operation.

Description

Human fat balance

Technical field

The utility model is relevant for a kind of Human fat balance.

Background technology

Be accompanied by the increase of overweight people's body weight, of all kinds also following about healthy problem, as: the problem of cardiovascular aspect, muscle power are not good ... Deng, in the course of time cause the generation of various diseases very easily, consider down in being based on healthy factor, more and more common people begin to pay attention to the problem of fat this respect, but owing to whether be too obese and physically observe judgement by eyes merely from appearance, some human skeleton is innately comparatively sturdy, some muscle is thick and strong, and its body weight is all heavier by very easily causing error in judgement in appearance than common people.

Also therefore, just there is the dealer to develop various body fat measurement mechanism, the start principle of this device generally promptly as shown in Figure 7, it is to utilize two hand fingers or two soles to push two electrode pairs 51 respectively, 52, make in wherein the current path formation electrode 511 of an electrode pair 51 and the current path formation electrode 521 of another electrode pair 52 form a loop with health respectively, utilize again that wherein the potential electrode 512 of an electrode pair 51 and the potential electrode 522 of another electrode pair 52 are carried out the measurement of voltage, to make among above-mentioned loop, utilize the decay of electric current along with the time, and measure the variation of voltage and try to achieve impedance, again the resistance value of being tried to achieve is delivered to CPU carrying out the computing of arithmetic expression, and then obtained the fat value of learning health.

Yet, this kind measurement mode is still found when practical operation is used, it need be imported CPU separately and calculate required height, the body weight of body fat value on using ... etc. data, and body weight wherein belongs to a bigger data of mobility especially, make the common people before measuring body fat, also need go ahead of the rest and measure body weight in addition, cause the puzzlement of this measurement mode on using and inconvenience.

So, there is the dealer to utilize the mode of weighing scale combination apparatus for measuring fat, make when this device is pushed two electrode pairs with the sole contact on the both feet station, can measure body weight simultaneously in the lump, add height, age that the user imports separately ... etc. data, carry out computing through CPU and can obtain the fat value of health, whether be too obese to learn the user easily.Yet, this is installed in the use still and finds, its only the body weight data need not import direct measurement and can learn, all the other are as height ... carry out the required data of computing Deng CPU, still also need to import separately before the each measurement of user, make it in use still have inconvenience; In addition, no matter whether this body fat measurement mechanism can measure body weight in the lump, it utilizes two current paths to form electrode and potential electrode is carried out the voltage measurement mode, its electric current of mat is along with the time decays, the impedance of measuring change in voltage and then trying to achieve, very easily because of humidity, roughness and the contact area size of the skin at contact electrode position ... influence Deng various factors, produce the variation on the numerical value and lose that it is accurate, make its measured body fat value produce very big discrepancy with the body fat value of health reality.

Summary of the invention

In view of this, the inventor is studied improvement at structure of commonly using and disappearance, and a kind of Human fat balance of innovation is provided, in the hope of improving all disappearances of commonly using fully.

Human fat balance of the present utility model, it lies in body and is provided with display screen, and and be respectively equipped with power switch, set options button, and upper and lower adjustment key, be provided with two groups of electrode pairs in addition in the body appropriate position, this electrode pair is formed with two electrodes respectively, then utilized CPU to be linked to display screen in body interior, and this CPU is connected with power supply stabilization circuit and storer respectively, and together links with an A/D change-over circuit body weight determination device is arranged;

By this, make that two electrodes of this two electrode pair are that to form electrode also be potential electrode to current path, it utilizes RC oscillation principle fixed capacity C value, nationality is by the oscillation frequency that records and then calculate the resistance value obtain between each electrode loop respectively, again these loops are comprised the left foot front end from health to the right crus of diaphragm rear end, add the left foot rear end through health to the right crus of diaphragm front end, deduct the left foot front end to the left foot rear end, deduct the right crus of diaphragm front end again to the right crus of diaphragm rear end, the resistance value of gained is again divided by 2, and, can obtain a body impedance value accurately, and then obtain body fat value accurately the resistance value cancellation at each contact electrode position; In addition, also can in this storer, store the user and before import the required personal information of calculating body fat value, when reusing, this CPU can be according to the related data search that is carried out at through the body weight that the body weight determination device is measured in certain positive negative value of error, in each use, not needing input data separately, and more increase its convenience on using.

Can to trample electrodes in contact for sole right because the utility model is provided with two, and it also is potential electrode that the two point of two electrode pairs is all current path formation electrode, and make and be formed with loop, four roads between each electrode, utilize computing again through CPU, and with the various impedance cancellations on the skin, so can avoid the resistance value of health to be subjected to the influence of problems such as size of humidity, roughness and the contact area of skin, and can obtain correct body impedance value, and then calculate accurate body fat value.

Wherein, before can be used for using, this Human fat balance imports its this data that stores variant user in advance, and after recording body weight store recording in the lump, when the user stands on this Human fat balance next time, it can and then converse the body fat value from the line search data close with user's body weight, and does not need once more input data or operate.

Therefore, Human fat balance of the present utility model, can accurately record and calculate body fat, not be subjected to body surface humidity, roughness, contact area size to influence its measurement result, and on using, have the function that stores and utilize the automatic search of user's body weight to be correlated with and to store data.

Description of drawings

Fig. 1: stereoscopic synoptic diagram of the present utility model.

Fig. 2: calcspar of the present utility model.

Fig. 3: circuit diagram of the present utility model.

Fig. 4: the utility model A/D conversion and body weight determination manipulated or operated apparatus.

Fig. 5: the formed loop of each electrode of the present utility model synoptic diagram.

Fig. 6: workflow diagram of the present utility model.

Fig. 7: the formed loop of each electrode synoptic diagram of commonly using.

Embodiment

For technological means, technical characterictic that the utility model is used, reach purpose and effect is easy to understand, be described in detail as follows with reference to the accompanying drawings:

At first, please refer to Fig. 1～Fig. 4, it lies in body 1 and is provided with display screen 11, and and be respectively equipped with power switch 12, setting options button 13 reaches, under adjust

key

14,15, be provided with two groups of electrode pairs 2 in body 1 appropriate position in addition, 3, be formed with two electrodes 21 respectively, 22,31,32, body 1 inside has then utilized CPU4 to be linked to display screen 11, and this CPU4 is connected with power supply stabilization circuit 41 and storer 42 respectively, and together link with an A/D change-over circuit 43 body weight determination device 44 is arranged, and the power switch 12 on the body 1, setting options button 13 reaches, under adjust

key

14,15 with

electrode pair

2,3, all actions that can import CPU4.

Wherein, see also shown in Figure 5, two

electrodes

21,22,31,32 of this two

electrode pair

2,3 are that to form electrode also be potential electrode to current path, when the user gives the application of force respectively and pushes with the front and back end of two soles, utilize RC oscillation principle fixed capacity C value, by the oscillation frequency that records and then calculate respectively and obtain: the contact impedance r that left foot palm front end and electrode are 21 ₁The impedance R of serial connection left foot palm front end ₁Form an impedance R _{Before the L}, the contact impedance r that left foot palm rear end and electrode are 22 ₂The impedance R of serial connection left foot palm rear end ₂Form an impedance R _{Behind the L}, the contact impedance r that right crus of diaphragm palm front end and electrode are 31 ₃The impedance R of serial connection right crus of diaphragm palm front end ₃Form an impedance R _{Before the R}, the contact impedance r that right crus of diaphragm palm rear end and electrode are 32 ₄The impedance R of serial connection right crus of diaphragm palm rear end ₄Form an impedance R _{Behind the R}, with the impedance R of health _B

At this moment, slap front and back ends in 21,22 at electrode through left foot and form a loop, 31,32 at electrode is slapped front and back ends through right crus of diaphragm and is formed another loop, 21,32 at electrode also forms a loop again through left foot front end, health, right crus of diaphragm palm rear end, 22,31 at electrode is then slapped front end and is formed a loop through left foot palm rear end, health, right crus of diaphragm, and above-mentioned each loop is promptly as described below:

(1) R _{Before the L}+ R _{Behind the L}

(2) R _{Before the R}+ R _{Behind the R}

(3) R _{Before the L}+ R _R+ R _{Behind the R}

(4) R _{Behind the L}+ R _BTen R _{Before the R}

Again above-mentioned four formulas are given abbreviation and can obtain R _BValue, as described below:

\frac{(3) + (4) - (1) - (2)}{2}

= \frac{{2 R}_{B}}{2} = R_{B}

The utility model is when using, see also shown in Figure 6, it is after pressing power switch 12 power-on and making power supply stabilization circuit 41 supply powers, if the user uses for the first time, then can press any button enters in the key frame display screen 11, this moment its any measurement function of tool not, pinning setting options button 13 makes display screen 11 enter input pattern, on utilizing again, under adjust

key

14,15 import height respectively, age, personal informations such as sex, even the user stands on body 1 after input finishes, to allow the body weight determination device 44 of body 1 measure user's body weight, after the analogue value being converted to digit value through A/D change-over circuit 43, and be shown on the display screen 11 simultaneously and be stored in the storer 42, simultaneously, this CPU4 also can be with by electrode pair 2, the 3 resistance value R that obtain _B, reach user's input, the age of storing, sex, height, body weight after computing is the body fat value, be shown in the lump on the display screen 11 to allow the user learn.

If the user uses for the first time, it only need directly stand on the body 1, after treating that body weight determination device 44 is measured user's body weight, this CPU4 promptly can be automatically seeks in storer 42 necessarily not just, body weight value in the negative value of error and relative personal information, and shown, and the body fat value is calculated shown simultaneously, heavily be worth close data if there are several handwritings in the storer 42, and the data that hunts out is during for user individual's data, can utilize and press, under adjust

key

14,15 find out user's data, if and user's weight increase, reduce to surpass not input data of tolerance value or user, make when CPU4 searches less than related data in

storer

42,11 of this display screens can only demonstrate the body weight data, and remind the user to reset, store relevant data.

By the above, the utility model really has following advantage with commonly using to compare down:

1. to utilize the two point of two electrode pairs all be that to form electrode also be potential electrode to current path to the utility model, and make and be formed with loop, four roads between each electrode, computing via CPU, and some may be able to be caused the factor of error, as: impedances such as skin humidity, roughness and contact area size are removed, obtaining a body impedance value very accurately, and then precisely calculate user's body fat value.

2. the utility model utilizes CPU to cooperate storer, it can be write down personal information and body weight that the user imports, and after cooperating body weight determination to be installed on the bigger body weight of mensuration common people mobility, enter the relevant data that has stored that hunts out, making does not need at every turn all input data or manual search either separately in using, and can increase practicality and convenience in the use.

Claims

1. Human fat balance, it is characterized in that: it lies in body and is provided with display screen, and and be respectively equipped with power switch, set options button, and upper and lower adjustment key, be provided with two groups of electrode pairs in addition in the body appropriate position, this electrode pair is formed with two electrodes respectively, then utilized CPU to be linked to display screen in body interior, and this CPU is connected with power supply stabilization circuit and storer respectively, and together links with an A/D change-over circuit body weight determination device is arranged;

By this, make that two electrodes of this two electrode pair are that to form electrode also be potential electrode to current path, it utilizes RC oscillation principle fixed capacity C value, nationality is by the oscillation frequency that records and then calculate the resistance value obtain between each electrode loop respectively, again these loops are comprised the left foot front end from health to the right crus of diaphragm rear end, add the left foot rear end through health to the right crus of diaphragm front end, deduct the left foot front end to the left foot rear end, deduct the right crus of diaphragm front end again to the right crus of diaphragm rear end, the resistance value of gained is again divided by 2, and, can obtain a body impedance value accurately, and then obtain body fat value accurately the resistance value cancellation at each contact electrode position; In addition, also can in this storer, store the user and before import the required personal information of calculating body fat value, when reusing, this CPU can be according to the related data search that is carried out at through the body weight that the body weight determination device is measured in certain positive negative value of error, in each use, not needing input data separately, and more increase the convenience that it uses.